Fastener



F. S. CARR.

FASTENER.

APPLICATION FILED MAR 8, I921.

Patented 001;. 31, 1922.

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Patented (lot, Bl, 1922.

lJlhll l hll STATES ATENT FRED S. CARE, OF NEWTON, MASSAGE'D'SE'J'."JIS, ASSIGNGB TO CARR FASTENER COMPANY, OF CAMBRIDGE, MASSACHUSETTS,,A CORPORATION OF MAINE.

FASTENER.

Application filed March 8, 1921. Serial No. 450,744.

To all 11: bout it may concern Be it known that I, FRED S. Cline, a citizen of the United States, and a resident of Newton, in the county of Middlcsex and Commonwealth of Massachusetts, have invented an Improvement in Fasteners, of which the following description, in connection with the accompanying drawings, is a spec]lication, like characters on the drawings representing like parts.

'lhis imrntion pertains to improvements in separable fasteners. It is among the objects of the invention to provide a separable fastener of simple (1()]]Sill'l1itl()ll, great durabilit and of superior holding power.

in the drawings, which show a preferred form of one illustrative embodiment of my invention liip'ure 1 is an elevation of two pieces of fabric to which the stud and socket members of a preferred form of separable fastener are attached;

liig. is a section on the line 2-2 of Fir 1:

Fig. 3 is a front elevation of the preferred 'l'orni of socketillustrated in Figs. 1 and 2;

Fig. +l is an elevation of the preferred forn of stud. shown in Figs. 1 and Q; and

Fig. 5 is a section through the fastener on the line of Fig. 1.

l-leferring to the drawings and to the preferred form of iny invention selected for illustrative purposes, I have shown a stud including a head 6., a neck '7 and a base 8, and secured to the stud-cinrryinQ fabric 9 in any suitable way as by stitching 10. I have shown a cooperating socket including a casing 11. providing a stud-receiving plate 12 having a stiul-receiving aperture 12, therein and containing a spring ht presenting two portions intersecting the stud-receiving aperture The preferred form of spring will be more fully described hereinafter. The preferred form of socket illus trated is sewn to the socket-carrying fabric 15 by stitches 16. Where my invention is utilized in connection with fastening elements adapted to be sewn to their carrying fabrics, I prefer to make the casing 11 in one piece and to provide for holding in the spring lat by a flanged-over rim 17 of the casing. The stud-receiving aperture 13 is preferably notched at one side providing the recess 18 communicating with the studreceiving aperture 13 and adapted to perinit the stud to shift laterally in the socket to a small extent, sufiicient to prevent separation of stud and socket by the resolution of forces arising from lateral strain between stud and socket urging the stud toward the notch, or n the general direction oi the notch, the notch, however, preferably tipping! movement at an angle sornewl'iat greater than that likely to be produced by the resolution of forces arising from lateral strains in. the direction indicated.

i The spring 14, as before described, preferably intersects the stud-receiving aperture l-l at opposite sides thereof as at 19 and 20. Between these portions, the springprefer ably forms a loop, the end of which extends adjacentto the peripheral wall of the socket underlyingthe flange 17 at 21. At the other side of the stud-engaging-,portions 19, and 20 the spring underlies the flange 17 at 22 and 23 neferably, as illustrated, being prorii'led with outwardly turned portions 24; and ZJrspaced away from the wall of the casing through a substantial distance so as toincrease the, resiliency of the stud-engaging portions of the spring.

The spri ng may, if desired, be positioned relative to its casing by a projection 31 extending within the loop of the spring adjacent its central portion 21. springbetween the stud-engaging portions 19 and 20 is preferably such as to provide inclined portions intersecting a part of the stud-receiving aperature 13 at the side opposite the notch 18 so that as the sprinp gripping the head of the stud. tends to 9 move the stud-engaglng portions In and 2 reason of enlar enormal lateral strain between stud and socket will lead the neck of the stud into The loopin the The notch 18 in the he notch it hen the stud is entered in this notch, the resolution of torces arising itroin lateral strain will not cause the stud to tip in such a way as to become separated from the socket. 011 the other hand, when it is desired to separate the stud from the socket, a pull on either the stud or socket in either aim-axial direction or one producing a tip somewhat greater that that arising from the resolution of forces under lateral strain will cause the stud to be released from the socket even though a considerable amount of lateral strain between stud and socket exists at the time of separation.

lVhile I have shown and described a preferred form of one embodiment of my inmi lion, it will be understood that changes involving omission, substitution, alteration and rcxeisal of parts, and even changes in siliently pressing said, two portions toward one another to grip'a stud entered in said aperture, the opposed spring portions at the other side of said loop unorossed and lying generally in the same plane.

2. In a separable fastener, a socket com prising a casing having a plate with a studrecei'ving aperture theret-hrough and a notch communicating with said aperture, a spring in said casing presenting two portions intersecting said aperture, said spring presentinga complete loop and expansion of said loop resiliently pressing said two portions toward one another to grip a stud entered in said aperture, said portions a11- gled to press the stud toward that end of the aperture away from said loop and into said notch.

23. A socket for separable fasteners, said socketcomprising a casing lliIVlIlg one side generally closed by a plate having a studreceiving aperture therein and its other side generally open but partially closed by a flanged-over rim of said casing, and a spring in said casing providing two portions intersecting the aperture, said spring formed of a single piece of wire underlying said flange at three points and bearing against the periphery of said casing at one of said points only.

A socket for scparablc fasteners, said socket comprising a casing having one side generally closed by a plate having a studrereiving aperture therein and its other side generally open but partially closed by a flanged-over rim of said casing, and a spring in said casing providingtwo portions intersecting the aperture, said spring formed of a single piece of wire underlying said flange at three points and bearing against the periphery of said casing at one of said points only, said spring presenting a complete loop adjacent said one point.

5. A socket for separable fasteners, said socket comprising a casing having one side generally clOSGCl by a plate having a studreceiving aperture therein and its other side generally open but partially closed by a flanged-over rim of said casing, and a spring in said casing providing two portions intersecting the aperture, said spring formed of a single piece of wire underlying said flange at three points and bearing against the periphery of said casing at one of said points only, said spring held against rotation in said socket by a springsretaining projection from said casing adjacent said one point.

In testimony whereof, I have signed my name to this specification.

FRED S. CARR. 

